Follow-up to r16244.
Follow-up to r16244.

* subversion/libsvn_wc/adm_files.c:
   Add a cast to adm_dir_name initialisation to avoid GCC warnings.
  (ADM_DIR_NAME): New. Use everywhere to make all access to
   adm_dir_name atomic.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@856341 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion